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土壤调查

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The investigation on radioactivity level s of radioactive source storehouses and surrounding environment were conducted in logging CO.

对大庆测井公司放射源库及周围环境的放射性水平进行了调查,调查内容分为环境空气气溶胶辐射水平、水环境辐射水平、环境地表γ辐射空气吸收剂量率及土壤环境辐射水平四个方面。

The physical characteristics of water in the soil included soil bulk density, MWHC, capillary water holding capacity and least water holding capacity were also measured by soaking and discharging experiments with samples of soil from different soil depths in all studied communities.

通过对苔藓、枯落物和土壤的野外调查与室内实验,分析了川西高山和亚高山3种主要灌丛在不同海拔梯度的地被物及土壤持水性能,其有利于加深对长江上游高山和亚高山区灌丛水文效应的认识。

The difference in distribution of erosion sorts in vertical direction is very distinct.

在对雅鲁藏布江流域土壤侵蚀现状调查的基础上,分析了流域土壤侵蚀类型和分布规律。

The effects of some physical chemical properties of soil and variety forms of lead on accumulation in Houttuynia cordata Thurib were discussed, the effects of lead on growth and physio-biochemical characteristics were discussed, and the absorption and tolerance of lead in Houttuynia cordata Thunb were studied especially by Filed Survey, Analysis Sampling, Pot Experiment and Hydroponic Experiment.

通过野外调查及采样分析、土培试验和水培试验,本文探讨了土壤理化性质和土壤不同铅形态对鱼腥草吸收累积铅的影响,铅处理对鱼腥草生长及生理生化特性的影响,以及鱼腥草对铅的吸收特性和耐性。

While others have no marked difference between each other, it is means that there's no rule in them, and it can not make soil organism fall off, if you keep a Mao bamboo forest for several years just with weed-cutting measure.

综合实验结果得知,在该调查区内毛竹的栽培历史与土壤微生物功能多样性之间没有规律存在,也就是说,采取人工方法在冬季除去林下杂灌的毛竹林经营措施,长期种植毛竹不会引起土壤微生物功能多样性的下降。

The results showed that the method can meet the technical requirements on the soil sample test and analysis in the national survey of soil pollution.

本研究所建立的土壤中PAHs和PAEs的GC-MS快速分析方法及其质量控制措施可以为全国性土壤污染状况调查数据的科学性和准确性提供技术保障。

The 4127 soil samples collected from 17 townships in the second national soil survey in Wenchang, Hainan Province were analysed.

第二次土壤普查后首次大规模对海南省文昌市的土壤养分状况进行调查分析,共分析统计了17个乡镇的4 127个土样。

According to the datas from field investigation, lab experiment and slope run-off plot observation, the hydrologic functions of forest canopy, lower shrub, litters and soil layers have been studied. The canopy precipitation interception characteristic of different vegetation types have been analized. The results indicate that the broad-leaf forests and coniferous and broad-leaf mixed forests are better than phyllostachys pubescens forests and shrubs in canopy rainfall interception. And the litters water-holding ability of broad-leaf forests and mixed forests are higher than others. And the soil water-holding and infiltrating ablility of broad-leaf is good.

根据野外调查、试验及坡面径流小区的观测数据,研究了库区主要类型植被林冠层、灌草层、枯落物层和土壤层的水文功能,分析了不同降雨条件下不同类型植被的林冠截留特征,指出在林冠截留方面阔叶林、针阔混交林比楠竹林、灌丛的截留能力强;分析了库区主要类型林地枯落物层的水文功能,研究结果表明:阔叶林林地枯落物的持水能力普遍高于针叶林,而混交林枯落物的持水能力要比纯林大;林地土壤层的水文功能剖析表明:阔叶林林地土壤的持水性能较强,其林地土壤的入渗性能较好。

The nest materials, pH values, and soil compactions were measured respectively in 4 kinds of nest sites different in surface soil composition, and the process of nesting was observed continuously in fixed points.

共调查统计5 148个蜂巢的筑巢场所和朝向;选择4个土壤表层成分不同的筑巢地,分别测定其筑巢沙土的机械组成、pH值和土壤紧实度;定点连续观察整个筑巢过程。

Changes of contents of phenolic compounds (catechin, quercetin, chlorogenic acid, ferulic acid) and indoleacetic acid, and changes of activities of polyphenoloxidase and peroxydase during the cuttings rooting were determined.

蛇足石杉分别扦插于原生境土壤和灭菌土壤上,调查其生根率,测定生根过程中吲哚乙酸、酚类化合物(儿茶酚、槲皮素、绿原酸、阿魏酸)、多酚氧化酶和过氧化物酶活性的变化。

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